Z91.412Personal history of adult neglect

Z91.412 is the ICD-10-CM diagnosis code for personal history of adult neglect. It belongs to category Z91 (personal risk factors, not elsewhere classified), block Z77-Z99 (persons with potential health hazards related to family and personal history and certain conditions influencing health status) and chapter 21 (factors influencing health status and contact with health services). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within Z91.41 (personal history of adult abuse), Z91.412 is specifically for personal history of adult neglect. Related codes cover adult physical and sexual abuse (Z91.410), adult psychological abuse (Z91.411), adult financial abuse (Z91.413), adult intimate partner abuse (Z91.414) and unspecified adult abuse (Z91.419).

Don't report Z91.412 together with the conditions in its Excludes1 note: current adult neglect (T74.01, T76.01).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 951 (Other Factors Influencing Health Status, relative weight 0.5577), in MDC 23 (Factors Influencing Health Status and Other Contacts with Health Services), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

The Medicare Code Editor expects this diagnosis only for patients age 15 through 124.

It is not acceptable as the principal diagnosis for an inpatient stay; it may be reported as a secondary diagnosis.

It is exempt from present-on-admission (POA) reporting, so no POA indicator is required.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as V15.42 (history of emotional abuse).